Nut lock



Aug.5, 193 0. H. B. AVAKOFF ET AL 1,772,200

NUT LOGK Filed Aug. 19, 1929 /7/ Inventar A ttorney CII Patented Aug. 5, 1930 UNITED STATES PATENT OFFICE NUT LOCK Afiplicacion fi1ed August 19, 1929. Serial N0. 386,930.

T bis invention re1ates to certain new and useful improvements in devices' for locking a. nut to the shank 01 a bolt so as to prevent accidental Totation Cf the nut 011 the holt. Another very important object cf the invention is t provide a device of this nature heiein the holt has a shank provided With vention.

Figure21s a. vermcal fragmentary transa longitudinallv extending groove and a nut adapted to befhreaded 0n the holt, said 1nui:

being provided With a slide havirig a projection formed thereon adapted t0 be moved into and out of engagement With any one 0f the grooves for m aint a'ining the nut in lockecl position upon the holt.

Another very important object 0f the inve1ition resides in the rovision of additional means for maintaining the slide in locked en gagemeint with the bolt so as t0 prevent undue accidental movement of the slide out of engagement with the' b0lt.

Another very important object of the invention is 130 pr0vide a device 0f this natur'e which is simple in construction, consists 0f but c0mparatively few parts, is strong, du-

I 1able, positive and efficient in operation, practical, reliable, and otherwise Wel1 adapted fo r the purpose designed.

Other objeCts and advantages of the invention Will become dpparent chiring a study 01 th6 following description taken in comnection With the accompanying drawings, wherein:

Figure 1 is a side elevation 0f a device C011- structed in-accordance With the preSent in- VGIS8' sectional view, through the holt and the nut, fully illustratingthe m'anner of 10( :k: ing the slide plate in locked engagement W1th the shank of ehe holt. 3

Figure 3 is an end view 0f the device, showing the position of the locked plate prior t0 its interlocking engagement with the holt Figure 4 is a side edge elevation of the sl 1de plate.

Figure 5 is an end elevation of the dog.

With reference more in detail 130 the drawings, itwil1 be seen that we have designated the bolt generally by the refe1ence character 5 and that th same has its shank p'rovided with a plurality of longitudinally extehding circumferentially sp aced grooves 6. The ref erence character 7 designates generally a) nut p1 0vid ed With a centrzil aperture 8, which 'aperture is internally threaded for adapting the nut 130 be threaded up0n Ehe threaded portion 0f the shank of the bolt 5. 'O;n its outer facgz, the nut* 7 is provided with a g'rooVe 9, WhlCh groove opens aft its opposit6 end at Opposite sides of .t-he nut, as C1early shoWn t0 advantage in Figure 3; The side Walls of the groove 9 are undercut as 211310, and a substantia11y rectngular elongated frarrie Or slide plates 11 has itslongitudinaI sides on their outer faces bevelled as at 12 for slidable reception in the undercut Wall of the slot 9; As

'HAIRRY B A'V'AKOIEF AND LORENZ THIIVIME, '0F FAILRCBAI\TKS, TERRITORY 01. ALASKA;

SAID TI-IIMME ASSIGNOB T0 SAIID AVAKOIEIE 1 A suggested the frame orslide plate 11 is pro- Vic1ecl With an elongated opening 13, through which the shank 0f thebolt may extend, and Which a1: the san1e time Will permit of sliding movementof the platze 11 Withii1 the gro'ove of the nut. From one end W311 0f the slide 11 and projecting inwardly therefrorh a't the centerjof the opening 13 forrned therein, the slide 11 is provided with a projection 14, which' projection 14 is adaptecl 'to enter into either 0f the grooves 6 0f the holt 5, When the s1ide is slid into the groove for mo ving the projection 14 towardthe shank 0f the holt, so that said projection may be fedeived inso ehe adjacent slot6 01 the bolt.

One'side wa'1l of the Slide 11 on the lower surfac'e of the wallhas a pair of no'tches 15.

The purpose 015 these notcheswill be herein f after described.

Extending inwardly fromm the front face 0f the nut 7 and having its open end in. com- 111unicationw ith the slot in said boltfihe nut is pr ovided with a recess or pocket 16. 'Sl'idable within the po ket 16 is the'shank 17 of a dog 18. A coil spring 19 is loca'ted within the pocket, one (and 0f the coil spring bearing against the real. Wall 01": the pocket, th e oppo site end 0f the spring bearing against the inner end of thesh ank 17 of the dog f0r normal1y urging the shar 1k outwardly of the pocket and into the'slot'9; v

I1; is ye t to be mentioned thafionejvall "0f theslot 9 is suitably slptted intermed1ate its encls as ab 20f0r the reception of theheadl8 01"? said dog. Ai its head 013 outer end, the dog is undercut as ab 21 t provide a shoulder 23, which shoulder 23 is adapted t0 engage in any of the. notches 15 formed in die side Walls of the slide 11 f0r 1naintaining said s1ide imnnov'able within th'e slot so that when the projeceion 14 of the slide is seatd within any of .the groo ves 6 0ff ths holt 5 akccidental movement of the slide Will be preVehted.

Obviously, in ordsr to release the slicie, the (10g 18 is pushed inwardly aga'inst the action 0f the spring into the pocket 16 so that the shoulcler 23 is brought out 0f engagement with the latch 15, thus permitting a sliding movement 0f the slide 11 for withdrawing tne .projection 14 :fr0m the groove of the bola 5.

Vv'hen the slide 11 has been moved a suffi cient dist21ncef withdmw the projecnion 14': from the slot G, obviousljz the ("log 1na y be releasecl so (hat Ehe samsmay be urged Outwardly in orderfhat is shoulder 23 may then engage fheother'of Ehe sl0is 15, sothat said slide Will beheld within the sich 9 0;E the bolt,

lwhicn at the .sa1ne tinne will maintain the S1id-WithiIl the slot with it-s projebtion 14:

out=o1"- (angagemen; With ehe groove 6 of the holt, thus perm:mlng the rotat1on of th-s nut 7 u ponfhe holt at the, sa1ne ti1ne that the slide is maintained xvihinthe slot 9.

From the foiegoing h en it is believed that a horough understarid1ng of the construction, operation an'd advantages f a nut lock' 1. In a device 0f the dass described, a bblt v having; a longitudinalgroove, a nutadaptd a0 bei;hreaded on the 1001i,- said nut beingprovidedon 0ne face With a slo t 21 slide slidable n the sich, sa1d shd 3 hav1ng a cent1al recess adap'zed=-to receive the acljacent end of*the bolta projectionon the slide adapted f0r I9- cep-ti0n in said groove, and means for 'locking --ths slide in a predetermihed position within 2.ln 'ad-evice ofthe dass desciibed, a holt ing grooves, a nut adapted to be threaded on the holt, said .nut being provided on one face with a slot, a slide slidable in said s1ot anc1 hm*ing a central aperture adapted to receive the adjacent end 0f the holt, aprojection formed on the slide adaptedto engage in any 01" said grooves, said slide being provided 011 0ne side "uhereorc' Wih notches, sind a (10g cmried bythe nt anti adapted i0r reception in either 0E said notches for locking said slid6 in a precletermined position within said slot. 4. In a device of the dass described, a holt having a pluralicy 05 longitudinally exten& inggrooves, a nut adapted t0 -be threaded on the holt, Said nut being provided aa one face with a slot, slide slidable in saidslo and having a cel1tral aperture adq3ted 130 receive uhe acljacent end. of the holt, a projection for1ned 0n the slicle adaptd t0 engage inany 01" said groov'es, saic'l slide b ing provided on 0ne side lie1eof With notches, and. a d0g c ar ried by" he mit and adapted f0r rec ep1;ion in ither 0i notches for locking said s1ide in a predeternnned pos1t1on vv1chin sa1d slot, and sprmg means for ymldably reta1nuigsa1d.

clog in engzigs1nent with said notches [in the slide.

5. In device Oftheieiss described, a holt having a plumlity of longitudinally extend ing grooves formed therein, said grncives being arranged 011 fl1e holt in Circumferen'tial space relation, a nut adapted L0 be threaded on said holt, saic1 nut being provided 0n one face With. a S101 a slide operable in 1zhe slot, said slide having a-fcentral aperture adapted .t0 receive said bolt, a pmjection carrie d on tne slide adapted. to engage in eithr 0f said gmoves, said nut being provided. wit;h '21 pocket communicating withsaid slota spring presssd 510g slidable in said pocket and adapt- V -ed t0 be moved outwardly toward Said sl-ot, said siide being provided with nob-ehes,; and said do g adapted to tengage in -the notches f01' maincaining th slide in locked engagement with the bol 0r in an unlocked engagement Wibh the blb'to per1nit rotation 0f the nuc upon che said bolt, as and for the pw:pos'e specified.

In teSt1mony whereof We Qffix nur signa eures.

LORENZ THIMME having a plurality 0f longitudinally extending grooves, a nut adapted t0 be threaded 011 the holt, said n-ufibeing provided onone face with slot, a slide in the slot having a central openihg adapted to' receive ihe adja ient nd 0fthe holt, a -prc jectionjonthe slide adapted 50 be received in either of's'aid grooves, und means f or lo'cking the Tslide in the s1ot afor mainta'ining sai d pr0jection' seated within the groove 0f =the holt.

I3.Ih a device of th'e dass described, a bei:

I-IARRY B. AVAKOFR i 5mmg a pliwality 0f longitudinally extend 

